Take first, for instance, the window which gives us the story of S. Eustace, the third in the north aisle of the nave, and the third in the north clerestory of the nave, with its medallions of apostles and S. Thomas of Canterbury, that favourite saint of the Middle Ages. They were given by the furriers and drapers, the _Bourgeois_, as they were called, of the River, members of the renowned corporation known as the _Métier de la Rivière_. This _métier_ included the professions of the woollen-drapers, combers and cleaners, felt-makers and dyers. Six jurés were elected annually by the masters of the guild, whose duty it was to examine, and pass or reject every piece of cloth or wool-work made at Chartres or anywhere within a radius of three leagues. Latterly every piece approved was stamped with a leaden trademark. The trade flourished and brought great reputation to the town from the twelfth to the sixteenth century. But the wars with England, and plague and famine greatly affected its prosperity. These and other causes led to its gradual decay and final disappearance. The tanners and cobblers who gave the third and fourth windows in the south aisle of the nave formed one corporation, and the curriers were for a long time included under the heading of tanners. The latter were attracted to Chartres by the excellence and quantity of the skins to be obtained there, and by the peculiar quality of the water of the Eure, which, together with the bark supplied by the trees of the neighbouring forests, was specially adapted for curing them. The tanners flourished exceedingly, and were accustomed to celebrate with great magnificence at the riverside Church of S. André the feast of their patron, S. Louis. The difficulty of procuring skins and other accessories had considerably injured them by the time of the Revolution, and their industry, like that of the shoemakers, has to-day no more than a quite local importance. But the river is still to some extent the scene of their labours. For though agriculture is now the chief industry of the department, and though the great fairs of May and September are great no longer in comparison with their splendid past, the commerce of Chartres is not altogether dead. There is a considerable traffic not only in corn and wool but also in sheep and horses, and a walk along the river banks between the Pont Neuf and the Porte Guillaume will [Illustration:]